Book-cover-attaching means



F. D. PITT.

BOOK COVER ATTACHING MEANS.

APPLICATION FILED SEPT. 19, 1921.

Patnted July 18, 1922.

Lg fill I 2 SHEETS-SHEET 1, 71W

F. D. PITT.

BOOK COVER ATTACHING MEANS.

APPLlCATION man SEPT 19, 1921 2 SHEETSSHEEY J.

fiweiifor $6,365: 2 my yak-6' FREDERICK D. PITT, OF KANSAS CITY MISSOURI, ASSIG-NOR T0 IRVING-FEET MANU- FACTURING CGMQPANY, 0F KANSAS CITY, MISSOURI, A CORPGRATION OF MIS- SOURI.

BOOK-COVER-ATTACHING MEANS.

asagna.

Specification of Letters Patent.

Patented e1? uly l8, 19%2.

Application filed September 19, 1921. Serial No. 501,606.

To all whom it may concern;

Be it known that l, FREDERICK D. Prr'r, a citizen of the United States, residing at Kansas Cit in the county of Jackson and State of issouri, have invented a certain new and useful Improvement in Book-Cover Attaching Means, of which the following is a specification. v

My invention relates to improvements in book cover attaching means.

It relates particularly to attaching means for securing the metal parts of a loose leaf book to the back of the book. It relates also to a novel method of making a pocket for receiving a back plate in a single ply back of a hook.

Une of the objects of my invention is to provide novel attaching means which eliminates stitching, gluing or securing devices extending from the outer to the inner side of the cover;

A further object of my invention is to provide a novel method of cutting a back: plate receiving pocket in the back of a book.

A further object of my invention is to provide attaching means of the kind described, which is simple, inexpensive, efficient and does not mar the appearance of the book.

In the accompanying drawings which illustrate my invention and means for carrying it into eil'ect,

Fig. l is a plan view, partly broken away, of a portion of a book cover provided with my improvement and a back plate mounted in the pocket.

Fig. 2 is a perspective view of a partly finished cover embodying my invention.

Fig. 8 is an enlarged vertical sectional view on the line 3--3 of Fig. 2.

4 is an "enlarged cross section on the line L-d of Fig. 2.

Fig. 5 is a perspective view or" a portion of the completed cover, together with the tool used to make the end slit in the back.

Fig. 6 is a perspective view oil? a portion of the completed cover together with the tool employed for severing the material be tween the rows.

Fig. 7 is a view partly in plan and partly in section of a portion of an unfinished cover and the tool employed for cutting the material between the rows of slits.

F ig. 8 is a reduced cross section of a loose leaf ring book provided with my improvement.

Fig. 9 is a side view partly in elevation and partly in vertical section of a tool which may be employed for cutting the transverse slits in the back of the book.

Fig. 10 is a bottom view of the tool shown in Fig. 9.

F ig. 11 is an enlarged longitudinal sectional view of a portion of the back of the book and the tool used in cutting the transverse slits, and shown in Figs. 9 and 10, the cutting blade of the tool being shown in the entering position.

Fig. 12 is a view similar to Fig. 11, with the blade of the cutting tool in a position occupied by it when its cutting operation has been completed, the section being on line 12-12 of Fig. 10.

Fig. 13 is a cross section on the line 18-13 of ig. 12.

Similar reference characters designate similar parts in the different views.

The cover of the book comprisesthe usual cover members 1, flexibly connected at their inner edges .to a back 2, consisting of single ply sheet, of leather. imitation leather or other suitable material in which are cut, preferably on the inner side of the back, at the longitudinal edges of the latter, two longitudinal grooves 3, which permit the covers 1 to be readily swung to the position shown in Fig. 8. In the manufacture of the device, the grooves 3 serve as guides for the slit cutting tool, as hereinafter do scribed.

For forming a longitudinal pocket to receive the usual back plate 4, 1 and Fig. 8, the two longitudinal rows of transverse slits 5 are cut in the inner side, preferably, of the back toward the opposite side of the back but not entirely through the back. The slits 5 are then cut horizontally and longitudinally in the back, so that the slits in each row connect with each other thus forming two longitudinal narrow pockets 6. Figs. 3, 4. and 7, which are separated by a partition 7.

For cutting the slits 5 and 6, any suitable instrument may be employed, as for example the one shown in. Figs. 9 to 13, which we mounted in one end a supporting roller 9 and having secured to its under side and forward end a cutting blade 10, the forward end of which is provided with two forwardly extending sharp cutting arms 11, which are adapted to simultaneously cut a pair of the slits 5, when the tool is disposed in the position shown in Fig. 11. The tool may be provided with an arcuate portion 12 beyond which the arms 11 extend, for limiting the depth of cut after the slits 5 have been cut, the tool 8 is swung downwardly to the position shown in Fig. 12, and is then forced forwardly until the arms 11 reach the preceding slits 5, thereby forming between the slits 5 or each row a continuous longitudinal slit 6.

After the tool 8 has been used to successively cut the slits 5 and the connecting slits 6, a tool 13 having a chisel blade, Fig. 5, may be employed to cut a longitudinal slit 14 in each end edge of the .back 2 to the adjacent pair of slits 5.

For severing the partition 7 between the two rows of slits 5, any suitable tool may be employed, such as a tool 15, Fig. 6. having two arms 16 at one end adapted for travel in the narrow pockets or slits 6. Between the arms 16, Figs. 6 and 7, is a beveled cutting edge 17, which severs the partition 7, whereby the narrow pockets 6 are connected with each other and the pocket which is to contain the back plate a is thereby formed.

For properly guiding the tool 8, its forward end and under side is provided at opposite sides respectively of the blade 10, with two longitudinal flanges 18, adapted for travel respectively in the grooves 3.

The inner side of the completed pocket may then be provided with two holes 19 adapted to receive respectively two upwardly extending lips 20, with which the back plate a is provided, and which are adapted to extend through and to be bent. over a spring plate 21. Fig. 8, which rests upon the inner side of the back 2, and which pivotally supports the outer edges of two interlocking hook plates 21 carrying the usual co-operating ring hooks 22.

In carrying my invention into effect, the back 2- is first provided with the grooves 3, after which the tool 8 is used to consecutively cut the pairs of transverse slits 5 and the connecting slits 6, the arms 11 being madeto enter the inner side of the back at points sutficiently near each other for the cutting arms 11 to cut each pair of slits 6 so as to intersect the preceding slits 6.

The tool 13, Fig. is then employed to cut a slit 14 in one or both of the end edges, after which the tool 15 is employed to sever the partition 7. thereby completing the pocket into which is inserted through one of the slits 1% the back plate 4, the holes 19 lips 20. The spring plate 21 is then mounted on the back and the lips 19, are then folded over the spring plate to secure the latter in its operative position. The hook plates 21, and cover 23 may then be applied in the usual well known manner to the spring plate 21.

It will be obvious that in books which require but a narrow pocket to receive the back plate, a single centrally located cutting arm 11 may be provided on the blade 10 so as to cut but a single row of slits 5-6, in which case it will be unnecessary to employ any partition cutting instrument.

I do not limit my invention to the structure shown and described, nor to the precise steps set forth, as many modifications within the scope of the appended claims may be made without departing from the spirit of my invention.

What I claim is 2- 1. The method offorming a pocket for receiving a back plate in the back of a book, consisting in cutting a longitudinal row of transverse slits in the back, and horizontally severing the material from slit to slit, substantially as set forth.

a 2. The method of forming a .pocket for receiving a back plate in the back of a book, consisting in cutting a longitudinal row of transverse slits in the inner side of but not entirely through the back. and horizontally severing the material from slit to slit, substantially as set forth.

3. The method of forming a pocket for receiving a back plate in the back of a book, consisting in cutting a longitudinal row of transverese slits in the back. horizontally severing the material from slit to slit, and cutting a horizontal slit from one end edge of the back to the next adjacent transverse slit, substantially as set forth.

4. The method of forming a pocket for receiving a back plate in the back of a book, consisting in forming two longitudinal grooves in one side of the back, cutting a longitudinal row of transverse slits in the back, and horizontally severing the material from slit to slit with a suitable cutting instrument, and utilizing the grooves for guiding the instrument in the cutting operation, substantially as set forth.

5. The method of forming a pocket for receiving a back plate in the'back of a book, consisting in cutting in the back two separated longitudinal rows of transverse slits, and horizontally severing the material from row to row and from slit to slit, substantially as set forth.

6. The method of forming a pocket for receiving a back plate in the back of a book, consisting in cutting in the back two separated longitudinal rows of transverse slits. horizontally severing the material between a it having been previously cut to receive the the rows and between the slits, and cutting longitudinally,

teaser? a horizontal slit from one end edge of the back vto the next adjacent slits in the two rows, substantially as set forth.

7. The method of forming a pocket for receiving a back plate in the back of a book, consisting of cutting in the back in one side of but not entirel through the back two separated longitu inal rows of transverse slits, horizontally severing the material between the rows and between the slits, and cutting a horizontal slit from one end edge of the back to the next adjacent slits in the two rows, thereby forming a pocket in the back, and then cutting one or more holes through one side only of the pocket, substantially as set forth.

8. The method of forming a pocket for receiving a back plate in the back of a book, consisting in cutting in one side of the back successively, a series of transverse slits ar ranged in a longitudinal row, each slit extending from one side toward the opposite side of the back and thence horizontally the horizontal portions 0 said slits connectin with each other, substantially as set forti.

9. The method of forming a pocket for receiving a back plate in the back of a book, consisting in cutting successively in one side of the back pairs of transverse slits arranged in two separated longitudinal rows, each slit extending from one side toward the opposite side of the back and thence horizontally longitudinally, the horizontal portions in each row connecting with each other, then severing the material horizontally from one end edge of the back to the adjacent pair of slits, and horizontally severing the ma terial between the rows of slits, substantially as set forth.

10. The method of forming a pocket between the inner and outer sides of a single ply back of a book, consisting in cutting a longitudinal row of transverse slits from one side'toward the other side of the back but not entirely through the back, and horizontally severing the material from slit to slit and from one end edge of the back to the adjacent slit, substantially as set forth.

11. A book cover having a single ply back provided with a longitudinal pocket adapted to receive a back plate, and a longitudinal row of transverse slits extending through one side only of the pocket, the sides of the back extending'continuously from one side edge to the other side edge of the pocket, substantially as set forth.

12. A book cover having a single ply back provided with a longitudinal pocket adapted to receive a back plate, and extending longitudinally from one end edge of the back, and tyvo longitudinal rows of transverse slits extending through one side only of'the pocket, substantially as set forth.

In testimony whereof I have signed my name to this specification.

FREDERICK D. PITT. 

